OK66 Coop Summary

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Cooperative Observer Station Summary

OKMULGEE WATER WORKS (346670)

*

OKMULGEE County

Climate Division: 6

*

Latitude: 3537N;     Longitude: 09601W

Elevation: 646 ft

*

Precipitation Period of Record:

1910/01-2010/09 ( 95%)

*

Temperature Period of Record:

1910/01-2010/09 ( 89%)

 

Monthly Averages (1971-2000)

 

Temperature (deg Fahrenheit)

Precipitation (inches)

Snowfall and Sleet (inches)

 

Daily Max

Daily Min

Daily Avg

Monthly Average

Monthly Average

January

48.8
24.6
36.3
1.62
2.3

February

55.4
29.5
NA
2.18
1.2

March

64.5
38.9
51.5
3.83
.9

April

73.3
47.4
60.1
4.00
.0

May

79.7
56.8
68.0
5.87
.0

June

87.3
65.1
75.9
4.69
.0

July

93.3
68.5
80.5
3.15
.0

August

93.3
NA
NA
2.61
.0

September

85.2
59.4
72.1
4.56
.0

October

75.8
48.2
61.7
4.27
.0

November

61.9
37.7
49.5
3.96
.1

December

52.4
28.5
40.1
2.64
.3

Annual

72.7
47.6
59.8
42.89
4.5

Average Number of Days Per Month (1971-2000)

 

Temperature

Precipitation

Snowfall and Sleet

 

Max>100

Max>90

Max<32

Min<32

Min<0

any

meas

0.10"+

0.25"+

0.50"+

1.00"+

any

meas

0.50"+

1.00"+

Glazing

Jan

0
0
4
24
*
7
4
3
2
1
*
2
1
1
1
2

Feb

0
*
2
17
*
7
5
4
2
2
1
1
*
*
*
NA

Mar

0
*
*
9
0
10
7
6
4
3
1
*
*
*
*
*

Apr

*
*
0
2
0
9
7
6
4
3
1
0
0
0
0
0

May

0
2
0
0
0
12
9
8
6
4
2
0
0
0
0
0

Jun

*
12
0
0
0
9
7
6
5
3
2
0
0
0
0
0

Jul

4
24
0
0
0
6
5
4
3
2
1
0
0
0
0
0

Aug

5
23
0
NA
NA
7
6
4
3
2
1
0
0
0
0
0

Sep

1
11
0
0
0
9
7
6
5
3
2
0
0
0
0
0

Oct

0
1
0
2
0
8
6
5
3
2
1
*
0
0
0
*

Nov

0
0
*
10
0
8
7
5
4
3
1
*
*
*
*
*

Dec

0
0
2
21
*
8
5
4
3
2
1
1
*
*
*
1

Ann

11
72
8
84
1
100
76
60
44
30
14
4
2
2
2
4

Exceedence Values (2 in 10 years)

Month

Maximum Temperature Higher Than:

Minimum Temperature Lower Than:

Precipitation Less Than:

Precipitation Greater Than:

January

75
0
.62
2.78

February

80
7
.89
2.97

March

88
15
1.74
4.94

April

90
28
2.51
6.27

May

93
39
2.50
7.75

June

99
50
2.61
7.23

July

105
56
.79
4.67

August

106
54
1.24
4.22

September

101
40
1.21
7.32

October

93
27
1.17
5.89

November

84
15
.94
4.63

December

76
6
.77
3.50

Annual

107
-3
32.73
47.50

Monthly Extremes

 

Temperature (F) (1910-2010)

Precipitation (inches) (1910-2010)

Snowfall (1910-2010)

 

Record High

Record Low

Monthly Max

Daily Max

Monthly Max

Daily Max

Greatest Depth

Jan

82
(11th, 1911)
-18
(22nd, 1930)
10.36" (1916)
4.51" (31st, 1923)
12.9" (1949)
10.0" (22nd, 1937)
12.0" ( 8th, 1988)

Feb

91
( 1st, 1911)
-12
(18th, 1910)
6.14" (1938)
2.65" ( 6th, 1999)
12.5" (1921)
9.5" (19th, 1921)
8.0" (27th, 1945)

Mar

96
(21st, 1916)
-5
(12th, 1948)
9.45" (1973)
3.91" ( 4th, 2004)
13.0" (1989)
12.0" ( 5th, 1989)
11.0" ( 6th, 1989)

Apr

101
(12th, 1972)
20
( 3rd, 1936)
12.63" (1945)
5.30" (14th, 1945)
.3" (1957)
.2" (13th, 1957)
.0" -

May

99
(31st, 1934)
34
(11th, 1981)
17.15" (1943)
6.02" ( 9th, 1943)
.0" -
.0" -
.0" -

Jun

107
(25th, 1918)
43
(20th, 1976)
15.79" (1948)
7.85" ( 1st, 2010)
.0" -
.0" -
.0" -

Jul

114
(19th, 1936)
47
( 6th, 1972)
11.72" (1950)
4.57" (28th, 1988)
.0" -
.0" -
.0" -

Aug

114
(10th, 1936)
46
(31st, 1915)
11.91" (2003)
10.20" (20th, 2007)
.0" -
.0" -
.0" -

Sep

109
( 5th, 1998)
32
(29th, 1916)
11.03" (1993)
6.87" (14th, 1993)
.0" -
.0" -
.0" -

Oct

97
( 1st, 1953)
14
(30th, 1917)
21.27" (1941)
7.58" (20th, 1983)
.0" (1913)
.0" (26th, 1913)
.0" -

Nov

89
(27th, 1910)
9
(15th, 1940)
9.08" (1994)
6.80" (21st, 1979)
3.0" (1923)
3.0" (29th, 1923)
3.0" (29th, 1923)

Dec

81
(24th, 1955)
-14
(23rd, 1989)
8.66" (1984)
4.86" (23rd, 1932)
17.1" (1958)
8.3" (13th, 1958)
8.0" (13th, 1958)

Annual

114
(Jul 19, 1936)
-18
(Jan 22, 1930)
21.27" (Oct 1941)
10.20" (Aug 20, 2007)
17.1" (Dec 1958)
12.0" (Mar 5, 1989)
12.0" (Jan 8, 1988)

First Freezing Temperature in Fall

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

November   2
October  22
October  12

2 Years in 10

November   5
October  26
October  18

5 Years in 10

November  18
November   5
October  30

Last Freezing Temperature in Spring

Probability

24 F or Lower

28 F or Lower

32 F or Lower

1 Year in 10

March  27
April  11
April  16

2 Years in 10

March  23
April   4
April  11

5 Years in 10

March  13
March  23
April   1

Number of Days in Growing Season

Probability

Higher Than 24 F

Higher Than 28 F

Higher Than 32 F

9 Years in 10

226
203
189

8 Years in 10

236
209
195

5 Years in 10

250
229
208

2 Years in 10

271
242
228

1 Year in 10

283
259
235

Precipitation Quantiles (Inches)

PERCENT

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

ANNUAL

MEAN

1.62
2.18
3.83
4.00
5.87
4.69
3.15
2.61
4.56
4.27
3.96
2.64
42.89

10%

.30
.50
1.17
1.78
1.91
1.58
.55
.69
.81
.99
.50
.42
27.83

20%

.62
.89
1.74
2.51
2.50
2.61
.79
1.24
1.21
1.17
.94
.77
32.73

30%

.78
1.10
2.22
2.83
3.36
3.09
1.14
1.78
2.12
1.69
1.53
1.26
36.18

40%

1.21
1.28
2.46
3.21
3.95
3.62
2.05
2.02
2.76
2.27
2.05
1.57
38.83

50%

1.70
1.76
2.88
3.93
4.87
4.52
2.52
2.40
3.19
2.98
2.34
1.94
41.07

60%

2.01
1.99
3.23
4.48
5.57
5.39
3.21
3.04
3.87
3.78
3.26
2.17
43.78

70%

2.32
2.45
3.85
5.44
7.03
6.04
4.06
3.60
5.64
4.99
3.76
2.56
44.62

80%

2.78
2.97
4.94
6.27
7.75
7.23
4.67
4.22
7.32
5.89
4.63
3.50
47.50

90%

3.62
4.12
5.51
7.36
9.10
10.47
6.98
5.61
8.62
7.84
5.93
4.97
52.90